Audit name:
[SCA] Openfabric AI / ERC20 / Aug2023
Date:
Aug 19, 2023
Table of Content
Introduction
We express our gratitude to the Openfabric AI team for the collaborative engagement that enabled the execution of this Smart Contract Security Assessment.
The Openfabric platform abstracts the technical complexity of AI systems, providing an enhanced user experience and business integration.
| title | content |
|---|---|
| Platform | BNB Chain, Others |
| Language | Solidity |
| Tags | ERC20 |
| Timeline | 07/08/2023 - |
| Methodology | https://hackenio.cc/sc_methodology→ |
Review Scope | |
|---|---|
| Repository | https://github.com/Openfabric/openfabric-token→ |
| Commit | 0c6fa0da34fd8200e3357822a2c820f0f773b0b1 |
Review Scope
- Commit
- 0c6fa0da34fd8200e3357822a2c820f0f773b0b1
Audit Summary
10/10
0%
10/10
10/10
The system users should acknowledge all the risks summed up in the risks section of the report
Document Information
This report may contain confidential information about IT systems and the intellectual property of the Customer, as well as information about potential vulnerabilities and methods of their exploitation.
The report can be disclosed publicly after prior consent by another Party. Any subsequent publication of this report shall be without mandatory consent.
Document | |
|---|---|
| Name | Smart Contract Code Review and Security Analysis Report for Openfabric AI |
| Audited By | Hacken |
| Website | https://openfabric.ai→ |
| Changelog | 15/08/2023 – Initial Review |
| 18/08/2023 – Second Review |
Document
- Name
- Smart Contract Code Review and Security Analysis Report for Openfabric AI
- Audited By
- Hacken
- Website
- https://openfabric.ai→
- Changelog
- 15/08/2023 – Initial Review
- 18/08/2023 – Second Review
System Overview
Openfabric AI is a token with the following contracts:
\-OpenfabricToken — simple ERC-20 token that mints all initial supply to a deployer. Additional minting is not allowed. It has the following attributes:
Name: Openfabric.
Symbol: OFN.
Decimals: 18.
Total supply: 500m tokens.
Privileged roles
OpenfabricToken.sol has no privileged roles.
Executive Summary
Documentation quality
The total Documentation quality score is 10 out of 10.
Functional requirements are provided.
The technical description is provided.
Code quality
The total Code quality score is 10 out of 10.
Test coverage
Code coverage of the project is 0% (branch coverage).
For a project with less than 250 LOC (Lines of Code) the test coverage is not mandatory, and it is not accounted for in the final score.
Security score
Upon auditing, the code was found to contain 0 critical, 0 high, 0 medium, and 3 low severity issues. Out of these, 3 issues have been addressed and resolved, leading to a security score of 10 out of 10.
All identified issues are detailed in the “Findings” section of this report.
Summary
The comprehensive audit of the customer's smart contract yields an overall score of 10. This score reflects the combined evaluation of documentation, code quality, test coverage, and security aspects of the project.
Risks
All tokens are minted to a single address. The secureness of the supply depends on the secureness of key storage.
The documentation states that some of the token use cases are voting, staking, and rewards. Since the single address is in charge of the whole totalSupply, it creates a centralization risk.
Findings
Code ― | Title | Status | Severity | |
|---|---|---|---|---|
| F-2023-163 | Unused Inheritance | fixed | Low | |
| F-2023-163 | Redundant Import | fixed | Low | |
| F-2023-1637 | Floating Pragma | fixed | Low | |
| I-2023-0424 | Disabled Solidity Optimizer | fixed | Observation |
Identify vulnerabilities in your smart contracts.
Appendix 1. Severity Definitions
When auditing smart contracts, Hacken is using a risk-based approach that considers Likelihood, Impact, Exploitability and Complexity metrics to evaluate findings and score severities.
Reference on how risk scoring is done is available through the repository in our Github organization:
Severity | Description |
|---|---|
Critical | Critical vulnerabilities are usually straightforward to exploit and can lead to the loss of user funds or contract state manipulation. |
High | High vulnerabilities are usually harder to exploit, requiring specific conditions, or have a more limited scope, but can still lead to the loss of user funds or contract state manipulation. |
Medium | Medium vulnerabilities are usually limited to state manipulations and, in most cases, cannot lead to asset loss. Contradictions and requirements violations. Major deviations from best practices are also in this category. |
Low | Major deviations from best practices or major Gas inefficiency. These issues will not have a significant impact on code execution, do not affect security score but can affect code quality score. |
Severity
- Critical
Description
- Critical vulnerabilities are usually straightforward to exploit and can lead to the loss of user funds or contract state manipulation.
Severity
- High
Description
- High vulnerabilities are usually harder to exploit, requiring specific conditions, or have a more limited scope, but can still lead to the loss of user funds or contract state manipulation.
Severity
- Medium
Description
- Medium vulnerabilities are usually limited to state manipulations and, in most cases, cannot lead to asset loss. Contradictions and requirements violations. Major deviations from best practices are also in this category.
Severity
- Low
Description
- Major deviations from best practices or major Gas inefficiency. These issues will not have a significant impact on code execution, do not affect security score but can affect code quality score.
Appendix 2. Scope
The scope of the project includes the following smart contracts from the provided repository:
Scope Details | |
|---|---|
| Repository | https://github.com/Openfabric/openfabric-token→ |
| Commit | 0c6fa0da34fd8200e3357822a2c820f0f773b0b1 |
| Whitepaper | Provided→ |
| Requirements | Provided |
| Technical Requirements | Provided |
Scope Details
- Commit
- 0c6fa0da34fd8200e3357822a2c820f0f773b0b1
- Whitepaper
- Provided→
- Requirements
- Provided
- Technical Requirements
- Provided
Contracts in Scope
contracts/OpenfabricToken.sol